Hello,
This comment concerns the latest version of Metasequoia EX edition.
As you could see in this screen capture (shared on my Microsoft OneDrive :
https://1drv.ms/u/s!AjokN1FU3jK1l3Q8YhYut6rQHEVI?e=Sg5GO4 ) the Rotate tool used in the Bone-Skinning Panel is overscaled.
Display Units are Meters.
I cannot change the scale of that tool.
Is it a bug or is there a hidden setting for that purpose ?